SEARCH Articles Figures Tables Claisen condensation Claisen condensation reaction intramolecular Claisen ester condensation intramolecular Intramolecular Claisen Condensation The Dieckmann Reaction Intramolecular Claisen Condensations The Dieckmann yclization Intramolecular Claisen-type condensation Intramolecular [3+21 cycloaddition Claisen condensations Intramolecular condensation Intramolecular reaction mixed Claisen condensation